Introduction to Linux I

Introduction to Linux I Chapter 14 Exam Answer 2016

1. Which of the following commands is used to view the summary of CPUs in the system?

  • cpustat
  • more /proc/cpuinfo
  • ls -cpu
  • lscpu

2. What is the maximum memory that a 64 bit processor can theoretically use?

  • 16 EiB
  • 8 GiB
  • 2 GiB
  • 4 GiB

3. Which command is used to view the summary of the RAM and swap space?

  • du
  • lsmem
  • iostat
  • free

4. Which of the following is not a characteristic of firmware?

  • Change settings to affect the use of external devices
  • Change runlevels
  • Tests the components upon startup
  • Typically stored in ROM

5. Which of the following is not a mass storage device?

  • FireWire
  • SATA drive
  • USB
  • Thunderbird

6. Coldplug devices are devices that are connected when the power is off.. True or False?

  • True
  • False

7. To use “plug and play”, which components must support hotplugging that device?

  • Device Driver, Interface, Operating System
  • Device, Interface, Operating System, RAM
  • Device Driver, Interface, ROM
  • Device Driver, USB, Operating System

8. Which of the following resources are used by devices to communicate with the system?

  • IO Channels, IO Memory, Interrupts and DMA Ports
  • IO Ports, RAM, Interrupts and DMA Channels
  • IO Ports, IO Memory, Interrupts, and DMA Channels
  • IO Ports, IO Memory, Signals and DMA Channels

9. Interrupts cannot be shared between devices.. True or False?

  • True
  • False

10. Which of the following commands is used to view the network interface controller connected on the PCI bus?

  • lsmod
  • lsusb
  • lspci
  • lsnet

11. Which of the following commands is used to view the details of an external drive connected to a USB port?

  • lsusb -v
  • lsusb-u
  • lspci -u
  • lsmod -u

12. Which option of the lspci command would you use to troubleshoot a network interface card?

  • -nn
  • -r
  • -t
  • -a

13. The _____ is a kernel module used by the kernel to manage hardware devices.

  • Driver
  • Configuration file
  • Subsystem
  • Interface

14. Which of the following is not a function of the udev subsystem?

  • Create device node when a new device is connected
  • Maintain psuedo filesystem in the /dev directory
  • Remove device node when a device is removed
  • Maintain log files

15. HALD is the abbreviation for:

  • Hardware Abstraction Layer Driver
  • Hardware Abstraction Layer Daemon
  • Hardware Availability Layer Daemon
  • Hardware Attribute Layer Daemon

16. What is the notification mechanism used to inform programs about a change in state of hardware devices?

  • DBUS sends notifications to HALD
  • HALD uses dbus to send notifications
  • Programs query HALD directly
  • DBUS forwards queries from programs to HALD

17. Which of the following is not true about kernel modules?

  • They can be compiled into the kernel itself
  • They are loaded automatically by the kernel
  • They are software to support devices
  • They are plug and play hardware devices

18. The _____ command is used to load a module along with its dependencies.

  • insmod
  • modprobe
  • ldmod
  • lsmod

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